What is Mixture of experts?
Mixture of experts is an architectural concept in transformer-based language models. It is part of the vocabulary teams use when they compare models, design prompts or review an AI system.
Definition
Mixture of experts is an architectural concept in transformer-based language models. It is part of the vocabulary teams use when they compare models, design prompts or review an AI system. The term is used in architecture discussions, where precision matters: two teams can use the same word to mean slightly different things. In this glossary, mixture of experts is treated as a practical concept rather than a formal specification.
Why it matters
Architecture terms describe how a model represents tokens, moves information between positions and scales with parameters and data. They explain why two models with similar parameter counts can behave very differently.
Example
Suppose you are comparing Sonar with another model for a production task. Mixture of experts is one of the factors behind the numbers you see: Sonar lists a 200,000-token context window, costs $10.57 per million input tokens and scores 76.3 on MATH-500. Understanding the term helps you decide which of those differences actually matter for your workload.
How to evaluate it
- Check whether mixture of experts is defined the same way in the documentation you are reading.
- Ask which measurement or trade-off the term is describing before comparing numbers.
- Separate vendor claims from independently observed behaviour on your own data.
- Write down the definition your team uses so reviews and evaluations stay consistent.
Related terms
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FAQ
What does Mixture of experts mean?
Mixture of experts is an architectural concept in transformer-based language models. It is part of the vocabulary teams use when they compare models, design prompts or review an AI system.
Why does Mixture of experts matter?
Architecture terms describe how a model represents tokens, moves information between positions and scales with parameters and data. They explain why two models with similar parameter counts can behave very differently.
How is Mixture of experts used in practice?
Suppose you are comparing Sonar with another model for a production task. Mixture of experts is one of the factors behind the numbers you see: Sonar lists a 200,000-token context window, costs $10.57 per million input tokens and scores 76.3 on MATH-500. Understanding the term helps you decide which of those differences actually matter for your workload.